In the event you missed them, I took a couple stabs at some email tutorials. The intent was to provide enough understanding to get you pointed in the right directions rather than get 'er done copy/pasta recipes. Hence, they may or may not be the droids you're looking for:
What does everyone use for dealing with their domain specific email addresses?
We use Google Apps, and registered our domain back when it was still free
Not an option anymore, though , so alternatives are good.
Right on. I am trying to get that set up in conjunction with my digitalocean droplet but google is having a hard time verifying it right now.